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Choosing the right tennis string is a great way to establish what strength your racket and string will offer your shots during a tennis match.

Most often the string you choose will either focus on power or control, with a few string options hitting something of a balanced, middle ground.

Choosing between a tennis string by Ashaway or Tecnifibre will depend on which of these options you are looking for and how you prefer your string to be constructed.

Both brands of strings will offer a wide selection between for players to choose from but each brand will have special design or materials that sets them apart from the other.

Gauge options

The dividing line between string’s gauge numbers, the number used to indicate a string’s diameter, is around 16 and 17.

Thicker strings fall are at 16 gauge or below with an extremely beneficial increase in durability.

These are great strings for fast swinging players or those who experience frequent breakage.

Thick strings do suffer from a lower rate of elasticity, spin, and feel though.

The lack of elasticity is this string types biggest downside as elasticity is used to create the ‘bounce back’ of a string which is how it generates power.

Thick strings will often focus on creating better control than power because of this.

A thin string is often labeled with a 17 gauge number or higher.

Thinner strings do not have as strong of durability as thicker strings, nor do they offer as much tension hold.

But they do have a greater elasticity, spin, and feel making them a popular string for all player types.

This increased elasticity makes thin strings the power strings.

Monofilament vs multifilament

A monofilament string consists of a material or combination that is used to form a single piece of string that offers increased durability compared to multifilament strings.

These strings also work well to produce spin and control.

However, monofilament strings also ten to offer less power to their string and lack a strong feel. 

They also have a low elasticity to them.

These string types are often made of a type of polyester, which can struggle to hold tension for long periods of time.

Monofilament strings are best for players who have faster swing speeds that can produce their own power-typically the skills seen in intermediate or advanced players.

Multifilament strings on the other hand require the use of materials to be wrapped or braided as a string, usually partnered with some type of binding agent.

The use of many individual filaments allows for the inclusion of various materials and the production of power and a comfortable feel.

They are usually made with a solid core for maximum durability and tension hold, and resemble the abilities of a natural gut string.

These string types are good for all players, beginners to advanced.


Ashaway produces a variety of strings and court sport equipment. Their tennis strings are all designed to possess strong durability and a high amount of playability.

While the increased durability usually indicated a thicker string with a greater focus on control, Ashaway does offer a large amount of power strings.

The durability of their strings comes from their use of Zyex material and other decisions that work hard to provide both power and durability.

All of Ashaways strings do include the note that players using these strings should make their tensions 10 to 15% less than their usual amount for nylon strings.

Zyex monofilament and multifilament

Zyex is a type of polymer material used to offer Ashaway strings with stiffness, resilience, lowered tension loss, and increased elongation.

These are all characteristics that can be found in natural gut strings and provide a strong power to the string.

The polymer Zyex is known as polyetheretherketon, shorted to PEEK, which is used to balance the need for a powerful and durable string, as it reduces abrasion and allows for a strong bounce that quickly reforms its shape with its stiff nature.

The use of multifilament rather than a monofilament string will have the most durability, while a monofilament will have better power.

Other string options

Not all of Ashaways strings rely on this material thought.

The brand also uses aramid, Kevlar, co-polymer, nylon polymers, and polyester depending on which string series you are selecting.

Aramid fibers are used on multifilament strings for increased durability to their braided strings.

Strings using this material feature a synthetic gut as a cross string for resilience and extra feel.

Aramid Ashaway strings are a great option for heavy hitting players and those who suffer from broken strings more regularly.

Kevlar as a material choice also offers superb durability with its braided string pattern offering a strong bite to create increased spin and control to your shots.

Co-polymer is used as a monofilament string options with a firm racket string bed that produces decent spin.

These strings are durable as they are a co string type rather than straight polymer.

Nylon polymers offer a similar decent durability as co-polymer string options.

With the use of nylon, the string will be abrasion resistant and notch resistant.

The string has a strong resiliency and is a softer playability than synthetic gut strings.

Polyester strings are a very durable, monofilament option with excellent playability.

String series

There are several strings series offered by Ashaway, each offering a variety of string options and features.

Most of these string options will include an option for gauge numbers between 16 to 18 leaving plenty of room for players to select from a thin or thicker string.

The MonoGut string series includes five different strings that include a soft, natural, and tough options for increased focuses on feel, power, or durability.

These strings are designed to work for all playing levels.

There are two additional MonoGut Competition strings as well a thin and thick diameter option designed for heavy hitters with an increased focus on durability.

These strings have a great amount of spin potential with supreme power.

The Crossfire Hybrid series features seven competition string options.

These strings offer a long life and extreme playability. Crossfire Hybrids are made for heavy hitters, meaning players who prefer a increased amount of weight and a head heavy balance to their rackets that allow them to place extreme force on their shots.

The next option is the Kevlar Competition strings with six strings to choose from.

These are a softer string but have an extremely durable nature.

They are similar to the Crossfire Hybrid as they feature a similar hybrid combination in their design.

They are for heavy hitters as well and those who break strings often.

Classical multifilament strings is a series of strings which refers to the tournament player strings that feature nylon material.

These three options range from 16 to 17 in their gauge number.

The last option is a Polyester Monofilament string series.

This string series is made for all player types with the MonoFire XL string having a 1.25 millimeter diameter, an average sizing, and a thicker 1.30 millimeter option for more heavy hitting players.


Tecnifibre strings come in a wide variety making it easy for all tennis playing types to find the string that best suits their needs.

There string options tend to follow the use of multifilament strings over monofilament to ensure an increased durability.

Tecnifibre also uses materials like polyester for its outer braided strings due to polyesters strong sense of control.

Polyester and control are matched through the additional grip and snap of the material.

This allows for a longer contact upon impact between the tennis ball and racket’s strings bringing better placement and accuracy to your shots.

The material also offers a bite to your shots that can increase a shot’s spin making it faster and more difficult for your opponent to retrieve.

Strings like Tecnifibre’s Black Code, Red Code, Razor Code, and Ice Code rely on the high-tech polyester material and Tecnifibre’s patented process for manufacturing strings.

This manufacturing process helps to reinforce the multifilament of the string’s design by adding polyurethane as an adhesive to hold the filaments in place.

The use of synthetic gut material is also common for Tecnifibre strings.

Synthetic gut means the strings feature a solid core rather than a hollow one.

This increases the strings durability and its stiff, elastic feel which can be beneficial for a powerful string.

Synthetic guts also work to maintain the best tension and feel of your string.

Tecnifibre series

Tecnifibre offers fewer series, basing the series on the design and materials used for the strings.

However, the series have several strings options within them that offer a wide range of features, emphasis and gauge numbers.

The polyester series features strings that consist of polyester material.

As previously mentioned, polyester material allows for a great deal of control with a strong grip and snap back that allows for a longer contact between the ball and string bed.

This control can help players of all skill levels but are definitely great for more advanced or intermediate players who can not only generate their own power for their shots.

The polyester line up includes strings like Razor Code, Ice Code, Pro Red Code, Black Code, and ATP Razor Code.

The Tecnifibre Hybrid 3D includes the HDMX and the Duramix HD natural strings.

The use of Hybrid 3D Technology allows the string to be designed in a way that expands the playability and controlled power of three different fibers which are polyester, Elastyl, and Thermostabyl.

The three fibers are combined with a high density polyurethane to give the string more control and spin generation.

This Hybrid technology is made to help balance out the need for control and power by uniting the benefits all differing string materials, allowing for a lowered lose from either element.

The multifilament series includes the natural X-One BiPhase tennis string, the NRG2 SPL, Multifeel, and the TGV natural.

The X-One BiPhase string is great for feel, comfort, and power using a blend of polyurethane and High Heat Capacity (H2C) fibers which is chemically treated with a processed known as Trimerization to increase the cohesion of the multifilament materials.

The NRG2 SPL string consist of elastic fibers and Silicon Pyrogene Lubritec (SPL) to reduce elongation and increase durability to create a string great for performance and spin, though less durable than other Tecnifibre strings.

The Multifeel string offers a solid core for durability which uses multifilament string construction and a monofilament outer layer of polyurethane with an abrasion resistant coating of SPL.

This is a soft string and is a great way to soften those stiffer frames.

Finally, the TGV string is a multifilament string with microfibers and polyurethane supported by a coating of SPL for abrasion resistance.

This is a great string option for those with arm problems or injuries.

Ashaway vs Tecnifibre Strings: Which is right for you?

Both string brands offer a wide variety of string options for you to choose from in order to find the best string for your skill level, tension, gauge number, and durability level needs.

Both Ashaway and Tecnifibre strings are made in a way to balance out the struggle between power and control, allowing players to access both of these elements in the features of their string’s composition and construction.

The brands are also pushing for their strings to be extreme durable without the lose of other positive string traits.

Ashaway and Tecnifibre strings also both have their own, distinct construction for many of their strings to use.

Ashaway uses a wider variety of materials in their strings construction and often features mono- and multifilament versions of their best string choices, though they more often rely on multifilament strings due to durability.

Their use of Zyex polymer, or PEEK, is how they balance out the powerful and durable needs of their strings.

Zyex works to reduce the affects of abrasion and create a strong snap to the strings.

It also allows for better stiffness, greater hold of string tension, and increases elongation.

Tecnifibre also uses more multifilament strings as their own way of increasing their strings durability.

They also use several hybrid mixes for their strings in order to rely on a larger variety of materials to help push their strings to the next level.

The use of Silicon Pyrogene Lubritec (SPL) is commonly seen throughout many of their strings.

This is a great addition to their strings as the coating helps to reduce elongation while increasing durability.

The SPL coating is also able to provide a strong performance to the string and is spin friendly.

Sources Consulted:

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